"Eternity" by Heartless was released on April 11, 2022. The duration of Eternity is about two minutes long, specifically at 2:33. This song does not appear to have any foul language. Eternity's duration is considered a little bit shorter than the average duration of a typical track. Because this song is the only song in Eternity and no other songs are present in the album, we classify this track as a single. In terms of popularity, Eternity is currently below average in popularity. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.
The tempo marking of Eternity by Heartless is Andante (at a walking pace), since this song has a tempo of 100 テンポ. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 4/4.
This song is in the music key of F Major. This also means that this song has a camelot key of 7B. So, the perfect camelot match for 7B would be either 7B or 8A. While, 8B can give you a low energy boost. For moderate energy boost, you would use 4B and a high energy boost can either be 9B or 2B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 7A or 6B will give you a low energy drop, 10B would be a moderate one, and 5B or 12B would be a high energy drop. Lastly, 4A allows you to change the mood.